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Forum: Security

Post here for help with Linux security issues: antivirus, firewalls, encryption, vulnerabilities, etc

  1. Sticky Thread Sticky: A short guide to Linux security

    Here at linuxforums.org we are often asked about the potential threat of a virus or malware attack. This short guide is designed to answer some of...

    Started by fingal, 02-25-2006
    • Replies: 1
    • Views: 51,209
    01-11-2010 Go to last post
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  1. interpret INPUT chain

    Hi, May someone help me understanding the INPUT chain in my iptables: Chain INPUT (policy DROP) target prot opt source ...

    Started by pksa, 11-28-2005
    • Replies: 0
    • Views: 1,903
    11-28-2005 Go to last post
  2. Firewall/segregation

    I need some help. I am planning on seting up K12LTSP at the hospital I work at in order to have it as an educational room for the school here on...

    Started by MeridianRebel, 11-28-2005
    • Replies: 1
    • Views: 826
    11-28-2005 Go to last post
  3. creating a secure ftp-based backup account?

    i'm scripting a backup process for a series of servers, where one server (the "backup server") will ftp into all other servers and grab files for...

    Started by proteus, 11-28-2005
    • Replies: 0
    • Views: 1,265
    11-28-2005 Go to last post
  4. how to get application name

    i want to filter packets based on application name in C language e.g to block msn messenger i want to filter it by application name so if any body...

    Started by irumleo, 11-26-2005
    • Replies: 2
    • Views: 1,440
    11-28-2005 Go to last post
  5. Tracing system calls of sendmail

    Dear All, I need to trace all the system calls made and signals recieved by the process "sendmail". i use the strace command to do this, but in...

    Started by sOldFiSh, 11-25-2005
    • Replies: 2
    • Views: 1,442
    11-26-2005 Go to last post
  6. getting iptables to firewall estabilished connections

    i have been writing a script to stop a distributed password guesser that is trying to get into my server over ssh. the password guesser is comming in...

    Started by simbo, 11-15-2005
    • Replies: 1
    • Views: 1,460
    11-25-2005 Go to last post
  7. How to use SSL JavaCA

    i use Fedora 4 , OpenSSL i downloaded JavaCA 2 and Crypto 130 i don't know how to use it! all i found is the command...

    Started by mesh2005, 11-24-2005
    • Replies: 0
    • Views: 711
    11-24-2005 Go to last post
  8. Linux Firewall

    Hi Im in the process of setting up a Cobalt Raq 4 web server and im looking for a sutible firewall for it. I do have a netgear router / firewall...

    Started by Mytob, 11-13-2005
    • Replies: 6
    • Views: 1,857
    11-24-2005 Go to last post
  9. Root password, HELP

    Hello, I put a simple password for root during the installation of Linux Mandrake, and now I'd like to change it, but I don't know how to do...

    Started by coycoy, 10-23-2005
    • Replies: 2
    • Views: 1,315
    11-23-2005 Go to last post
  10. Recommended frequency of "yum update"

    In a Linux security essentials website somewhere I read that one of the recommended security practices is to run "yum update" so every now and then....

    Started by technossomy, 11-22-2005
    • Replies: 3
    • Views: 2,840
    11-23-2005 Go to last post
  11. ULIMIT question

    I want to test my Java and C programs for memory usage for which I'm trying to restrict the memory available to a dummy user. I've tried using the...

    Started by PrashantSehgal, 11-22-2005
    • Replies: 0
    • Views: 4,891
    11-22-2005 Go to last post
  12. SASL, Could not resolve KDC network Address!

    i use Heidmal Kerberos , Fedora 4 , Cyrus SASL- 2.1.19 when i try to run the sample client i got the following error:...

    Started by mesh2005, 11-21-2005
    • Replies: 0
    • Views: 1,294
    11-21-2005 Go to last post
  13. SASL, Server not found in Kerberos database

    i use Fedora 4 , MIT Kerberos 5 , Cyrus-sasl-2.1.19 my domain name is demo.mydomain.org (as listed in the DNS) i tried to run the sample-server and...

    Started by mesh2005, 11-21-2005
    • Replies: 0
    • Views: 3,884
    11-21-2005 Go to last post
  14. FC4 security question

    I have a FC4 server machine running since the last few days and the installation went with the default security settings. I have since stopped a few...

    Started by technossomy, 11-19-2005
    • Replies: 2
    • Views: 862
    11-21-2005 Go to last post
  15. Fun with IPTables... and Forwarding

    Good evening all, Been around lately, searching the forums for various answers about Linux and Services and configurations. But this time.. can't...

    Started by EvilC0P, 11-20-2005
    • Replies: 0
    • Views: 1,352
    11-20-2005 Go to last post
  16. GrSecurity ntpd problem

    Hi, I've set up a gentoo hardened web server with hardened sources, grsec and pax enabled. I was in a rush to deploy so I didn't have time to learn...

    Started by humbletech99, 11-17-2005
    • Replies: 0
    • Views: 1,403
    11-17-2005 Go to last post
  17. Desperately need help. Server has been hacked.

    Hi Guys, My server has been hacked and I dont know where to start. Im pretty newbish at the whole linux thing and have been learning as i go. The...

    Started by byron, 11-17-2005
    • Replies: 0
    • Views: 1,004
    11-17-2005 Go to last post
  18. linux security

    i have heard lot abaut *bsd security and linux. generaly *bsd is more secure and stable then linux mostly becaus of its kernel. why dont guys that...

    Started by karantan, 11-01-2005
    • Replies: 4
    • Views: 1,027
    11-17-2005 Go to last post
  19. software like kerberos

    i tried to use Kerberos 5, but the configuration is very complex , anyone can help me to find another authentication system?

    Started by mesh2005, 11-14-2005
    • Replies: 4
    • Views: 893
    11-15-2005 Go to last post
  20. MandrivaSecurity MNF for i586

    Iv found this on the mandriva download section. Is it any good at protection a web server?

    Started by Mytob, 11-13-2005
    • Replies: 0
    • Views: 978
    11-13-2005 Go to last post

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